[//siddhartha//]

Oh! Yes, I went to the FEDORA FAQ in the Open Source forum, and tried all the tips given there.
But had the following problem:
I can mount my hard drives, no problem! But, for mounting the hard drives every time, I tried to edit the:
/etc/fstab file
add the following 2 lines at the end and save the file:

/dev/hda1 /home/C defaults 0 0
/dev/hda5 /home/D defaults 0 0

But, the file opened in the Emacs text editor and only as read only. So, I could only view the file and not edit it..
Similarly, to change the default login to KDE from GNOME, I tried to edit
/etc/sysconfig/desktop
and change

DESKTOP="GNOME"

to:

DESKTOP="KDE"

But here too, the files opened as read only and I could not make any changes. How can I change the file contents??